import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home.vue'
import Login from '../components/Login.vue'
import Jia from '../components/Jia.vue'

Vue.use(VueRouter)

const routes = [
  { path: '/', component: Home},
  { path: '/login', component: Login},
  { path: '/Jia', component: Jia},
]

const router = new VueRouter({
  routes
})
//挂载导航守卫
router.beforeEach((to,from,next)=>{
    //to 将要访问的路径。from 从哪个路径跳来。 next是个函数，表示放行
    if(to.path === '/login'){
      return next();
    }
    //获取token
    const tokenStr = window.sessionStorage.getItem('token');
    if(!tokenStr){
      return next('/login');
    }else{
      next();
    }
})
export default router
